Combined type-writing and computing machine.



H. MARSHALL.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. 12, 1912.

1,147 959. Patented July 27, 1915.

5 SHEETS-SHEET l.

Wi'TJVESSES. [2v VETV'TOI?! H. MARSHALL.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV-12.1912.

1,147,959. Patented July 27, 1915.

5 SHEETS-SHEET 2.

m'rncc'ssasx INVENTOR:

H. MARSHALL.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. I2. I912.

Patented July 27, 1915.

5 SHEETS-SHEET 3.

H. MARSHALL.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. 12. I912.

1,147,959, Patented July 27, 1915.

5 SHEETSSHEET 4.

33E E IEIEIIIIEIEIEIEIEII I77 I I ICIEIIJIEI Il m; EIQIEIEIEI H.MARSHALL.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. 12, 1912.

Patented July 27, 1915.

5 SHEETS$HEET 5.

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Mat/J FIG /4,

UNITED sTATEs PATENT OFFICE.

HOLMES MARSHALL, OF CLEVELAND, OHIO.

COMBINED TYPE-WRITING AND COMPUTING MACHINE.

T 0 all whom it may concern Be it known that I, I'IOLMES MARSHALL, acitizen of the United States. residing at Cleveland, in the county of (uvahoga and State of Ohio, have invented a certain new and usefulImprovement in Combined Type- Writing and Computing Machines. of whichthe followin is a full. clear. and exact description, re erence beinghad to the accompanying drawings.

The object of this invention is to provide in a combined typewriter andcomputing machine a mechanism by which multiplications or extensions canbe performed on one part of the machine, and the results of suchmultiplications added automatically on another part of the machine. Withsuch a mechanism, in making out an ordinary bill, the typist merelywrites the item and the price and these are automatically multipliedtogether, and the results are shown in the adding mechanism, and thetypist copies the amount so shown into the extension column on thepaper, and all of these extensions are added automatically in themechanism, thereby showing the total corresponding to the full amount ofthe bill. To accomplish this I provide, in conjunction with atypewriting machine, computing mechanism which is set as the amount ofthe item is written by the numeral keys of the typewriter. and mechanismwhich is set as the rate or price is written by the typewriter, therebeing automatic mechanism for causing the rate mechanism to operate thedial wheels of the item computer, in orders selected according to theorder of the rate digit, a number of times corresponding to the amountof that digit so that these item wheels are caused to indicate theproduct of the item times the rate. I further couple with the sametypewriting machine an adding mechanism operated by a portion of themechanism referred to, which. automatically totalizes the amounts shownby the productaccumulator when the operator type-writes them into theextension column on the pa er.

In carrying out my object, I provi e a product accumulator, atotalizingaccumulator and those sets of actuating mechanisms therefor, namely amultiplicand actuator, a multiplier actuator and a totalizer actuator.

Each of these actuators is set by the numeral keys of the typewriter,and the first two Specifitation of Letters Patent.

Patented July 27, 1915.

Application filed November 12, 1912. Serial No. 730,899.

writer carriage, and a mechanism common to all the actuators does themechanical work of operating them. I prefer to mount the accumulatorsand actuators in a suitable casin on which an ordinary typewriter isplace These and other features of the invention I will now be describedin connection with the accompanying drawings and thereafter definitelysummarize in the claims.

Referring to the drawings, Figure 1 is a side elevation of a typewritershown connected with my mechanism in'which part of the mechanism isshown in section on a plane indicated by line 11 on Fig. 2. Fig. 2 is ahorizontal section showing a plan of the operating mechanism; Fig. 3 isa front view of this same mechanism with the casing in section; Fig. 4is another transverse section taken through the casing substantiallyalong the line 4-4 in Fig. 2,showing those parts by which the repeatedadditions constituting the multiplying operations are made. Fig. 5 is across section of the casing substantially along the lines 55 in Fig. 4,showing the connection to the typewriter carriage which appears in thisview with the outline of a typewriter in broken lines. Fig. 6 is a topplan of the entire mechanism,the letter keys of the typewriter and theirmechanism being omitted for clearness of illustration. Figs. 7 and 8 aredetails of one of the slidable selecting dogs carried by the carriage ofthe typewriter; Fig. 9 is a sectional detail of a suitable clutchthrough which the motor drives my mechanism; Figs. 10 and 11 are detailsof the sliding sleeve which acts to reset parts of the actuatingmechanism for the product accumulator; Fig. 10 being a plan of thesleeve and Fig. 11 a section of same; Fig. 12 is a sectional frontelevation of one of the brackets in which are mounted the parts of theselecting mechanism actuated by the carriage of the typewriter; Figs. 13and 14 are details showing a convenient method of mounting the pins inthe slidable bars which constitute a part of all the actuwhich suchmechanism is driven; the usual numeral key of a typewriter; 6 thetypewriter carriage.

Without limiting myself to any form of adding mechanism, I prefer tousethe Hanson device, as shown in his patent on a calculating machineand typewriter attachment No. 816,319. I also use operating mechanismsomewhat similar to that shown in that patent.

At the right of the device is shown conventionally in Fig. 3 a Hansontype of addin mechanism 10. A'suit'able frame is rovi ed for thismechanism by thetwo p ates 12 and 13 supportedby three rods 14, 15 and16, which run horizontally across the case 1. The operation of thisadding machine is similar to the operation described in the HansonPatent No. 816,319, heretofore mentioned, and will be described later.

Small gears are so arranged that each meshes with a gear on each dialwheel and is rotated by engagement with a rack 22 on the vunit bar 23,there being one of these unit bars 23 for each dial wheel. The forwardend of these bars is supported and guided by a comb formed on the upperedge of a strip ,25 extending across the case 1 and having its .endssecured to the sides of the case. On-each of these bars are nine pins 24adapted to stand in raised or lowered positions. These pins correspondto the numerals' from one to nine, and the bars on which they aremounted correspond'to the orders in the given number to be registered inthe adding machine.

At the rear of the unit bars 23 is a selecting device comprising acasing 26 in which are mounted nine movable blades 27 each of which ispivoted at the ends of two parallel swinging arms 28. thus permitting aparallel arcal movement of each blade. At the upper edge of each blade27 is a tooth 29 which engages one of the bars 23 when the blade israised, and there is provided for each blade a lever 30 which may raisethe blade.

These levers 30 are suitably pivoted at 31 and each has a smallprojection 32 at the end to raise thecorresponding blade withoutdisturbing any of the others. Pivotally connected to the-opposite endsof the levers 30 are connecting links or rods which abut other. Any ofthese lower bars are adapted to be moved downwardly to engage anddepress the corresponding pin 24 of any lever 23 which may be in theraised position, such a pin 24 corresponding to the number of thenumeral key depressed, there being one pair of these parallel bars foreach numeral key. These bars 45 and 46 are supported at each end bysmall bell cranks'47 pivoted on two small rigid shafts 48, these shaftsbeing supported at each end in a suitable manner in the strips 50 and51, which extend across the casing 1, the strips being suitably securedto the sides of the casing, as shown in Figs. 4 and 5.

Between the sets of parallel bars 45 and 46 just described are nine rockshafts 52 having a bearing at each end in the strips 50 and 51, each onehaving a short rock arm 53 engaging a pin 54 on a bar 45 correspondingto the numeral key depressed. On the forward ends of'each of theserock-shafts 52 are small levers 55, (Figs. 1 and 2) which may bedepressed by the depending finger 57, which is pivotally attached to thenumeral key 5. The upper edge 58 of the strip 51 is extended and bentforward at right angles and has openings to guide the fingers 51. Thedepressing of the numeral key 5 rocks the corresponding rock arm 53,through its shaft 52, moves the bar 46 to the left by reason of the rockarm 53 engaging the small pin 54. Springs 49 return these parts to theirnormal position. Such a movement through the bell cranks 47 moves thelower bar 46 downwardly, depressesthe corresponding pin in any of thebars 23 which may be raised.

When several of the pins 24 are depressed the corresponding number isregistered in the adding mechanism by the following means: Running clearacross the machine under these bars 23 is a horizontal bar 60 mounted ontwo uprights 61 and 62, Fig. These uprights are carried by two slidableracks 63 and 64 sliding in suitable troughlike bearings 67 on the bottomof the casing 1. Rigidly attached to the bottom of the rack 62 is aU-shaped member 68 which straddles the upper end of the member 69' andmay be operated by any suitable means to slide this rack reciprocably inits bearing. The means shown for effecting this sliding will behereafter described.

At each side of the casing, meshing with the racks 63 and 64, are gears70 and 71 which transmit motion to the gears 73 and 74 on each end ofthe square shaft 76, which extends across the casing 1, and has abearing at each end in the casing. On this shaft 76 are mounted thetoothed arms 77 which are part of the carrying mechanism of the presentHanson mechanism. Some of the mechanism heretofore described is similarto the mechanism used by Hanson, and described in the patent cited, toconnect his mechanism with a typewriter; and reference may be made tothat patent for a fuller explanation of details.

The operation of the mechanism heretofore described is briefly asfollows: The

movement of the typewriter carriage 6 raises the pins 37 of the orderselector one at a time, thus depressing the link 33 through the movementof its lever 35 and raises a lever 31 and a blade 27, thus selecting oneof the bars 23 corresponding to the v order of the digit in the columnon the typewriter paper. The depression of the numeral key prints on thetypewriter paper the digit to be written in this column, and through themechanism described, depresses one of the bars 46 corresponding to suchnumeral key, and by reason of the unit bar 23 being raised, the pinunder such a bar 46 is depressed and remains so when the unit bar dropsback to its normal position when released by the dog 37, on the farthermovement of the carriage.

Several of the pins 24, having been depressed in the same manner,corresponding to a number to be registered in the adding machine, standprojecting below the unit bars 23, as shown in the case of one of thepins in Fig. 1. In such position the depressed pin is engaged by theforward edge of the universal bar 60 in its forward movement, which isdriven by the arm 69 connected with the motor, as shown in Fig. 1. Thus,as the universal bar 60 moves forward it engages the several depressedpins and moves the unit bars carrying those pins forward a distancecorresponding to the value represented by the pin depressed. These pinsare set back, or rather raised to their normal position by the bevelededge of the cross bar 65, which also extends clear across the casing 1,being supported at its ends on the sides thereof. On the forwardmovement of any unit bar 23 the rack 22 engages the gear 20 and movesthe corresponding dial wheel accordingly, thus registering the numberthat the typist has written on the typewriter paper, the unit bar 23being returned by means of the hooked portion 4 1 engaging the edge ofthe bar 60. These unit bars as well as those of the other sets areguided by suitable notches in the angle bar 78 carried by the bar 60.

The starting of the motor, after writing the number, may be by anysuitable means, such as the depression of a key which conrected moreparticularly to the totalizer mechanism. It is to be understood thatsimilar mechanism is employed with the other actuators. That is to say Iuse three dogs corresponding to 40, three sets of levers correspondingto 35, three sets of connecting lmkscorresponding to 30, three sets ofselecting devices, three sets of unit bars, all having pins similar tothe pins 24, adapted to be depressed by the levers 46 in the mannerdescribed.

In the left hand portion of the casing the product accumulator 80 (shownconventionally in Fig. 3) is mounted, and into this accumulator isregistered repeatedly the number to be multiplied. The method for-doingthis I will now describe.

The dial wheels of the adding mechanism 80 are each in mesh with gears81 corresponding to the gears 20, and are operated by the racks 83 onthe unit bars 84* which correspond to the unit bars 23. These bars 84have pins 85 and are selected by blades 87 of the selecting devices 88similar to the selecting'device 26, these blades 87 being raised bylevers 90, suitably pivoted at 91 and operated by links 92. These linksare depressed by a dog 93 raising the pins 95, suitably held in a head96 and operating through levers similar to 35, the whole movement beingsimilar to the one heretofore described for the totalizer mechanism.

The adding mechanism 80 is mounted in a frame one end (100) of which isa plate through which pass the rods 11, 15 and 16, the other end of theframe being a plate 101 through which the two lower rods 1% and 15 pass.This allows this adding mechanism to slide loosely along these rods.

The multiplier set of operating and selecting mechanisms is shownbetween the selecting operating and adding mechanism just described andsuch mechanisms previously described. The unit bars 110, which aresomewhat similar to the unit bars 23, but may be fewer in number, andthe blades 112 in the selecting device 111 may be fewer in number thanthe others. As the multiplier usually represents a price or rate whichis seldom a number ofvover five digits, live is the number of unit barsshown in the drawings. These unit bars are raised in the mannerpreviously described by levers 115 through links 116,.and have pinsthereon 118, and are selected by a dog 119, the same as the other twosets, but these unit bars do not register with an adding mechanism asthose of the other two sets.

On the square shaft 76 is a gear 120, which drives through idlers 121and 122 a gear 124, the same size as the gear 120, mounted .on thesquare shaft 126. This square shaft 126 has suitable bearings at eachend in a stationary frame composed of two plates 128 and 129.- The plate129 is shown as having mounted thereon suitable studs carshaft 126.-This frame has two portions,

143va'nd 144, between which is mounted a diskjlfitfiyslidable along theshaft 126, and which'has a projecting finger 147 adapted to engage'teet149 on the upper edge of the unit bars 110. These teeth are spaced apartcorrespondingly with the pins 118 so that, as this disk 146 revolves,the unit bar 110 will be moved back a distance equal to the spacin ofthese teeth 149, at each revolution 0 the shaft 126. An extension 145 ofthe plate 143 engages the side of the bar 110 and positions the disk 146over said bar. At the rear end of the unit bars 110 on the upper edgeare formed notches 150. These notches are spaced equally with the teeth149. A spring shown at 152 mounted on the block 154 rigid with the backwall of the casing 1 engages these notches to prevent a movement greaterthan the distance of one tooth for each revolution.

The dogs 40, 93 and 119 for selecting the orders in the three actuatorsare all mounted on blocks as shown in Figs. 7 and 8, in

. which the block is designated 160. Each dog is pivoted on a screw 161at one end of the block, the other end being on a shaft This shaft hasone flattened side against which the leaf spring 163 is adapted to pressand hold this block in a horizontal position, which brings the teeth 165in mesh with the rack 167. This rack 167 and the shaft 162 are rigidlymounted on the two arms 6 carried by the carriage of the machine.

It will be seen from Figs. 1 and 6 that the blocks 160 are of differentlengths and that the pins 37 and the correspondin pins in the other setsstand in three di erent paths. These blocks are movable along the shaft162 and held in any position by the engagement of the teeth 165 with therack 167, thus allowing the printing of the columns on the typewriterpaper in any desired position.

The shape of the dogs 40, 93 and 119 is shown in Figs. 7 and 8. In theiroperative position they stand upright, the cam at 168 on the dog eingthe means for raising the pins 95 and the corresponding pins in theother sets. It is desirable on the return of the carriage to have thesedogs inoperative. On the block 160is a small projection shown at 169against which the dog abuts in opera-.

tive position, and another leaf of'the sprin 163 shown at 170 allows thedog to fafi away from the operative position and drag loosely acrossthese pins on the return of the carriage. A small handle 191 is providedfor conveniently moving these little block s. As all three of theseblocks shown in Figs. 1 and 6 are the-same except for their len hi pressthe second pin on the bar next to the right; and the digit 5 woulddepress the fifth pin on the right hand bar. Then the name of the item(barrels of flour at would be written between this column and the nextcolumn. The block carrying dog 119, through the connections heretoforedescribed, would select certain of the unit bars 110 on the depressionof the numeral keys. The pins in these bars would be depressedcorresponding to the number 625, z. e., on the bar 118 third from theright in Fig. 2 the 6 pin would be depressed, on the second bar from theright the 2 pin, on the right hand bar the 5 pin.

Now, when the motor is started, the universal bar is carried forward bymeans of the racks 63 and 64, and the depressed pins on both of thesesets of 'unit bars (83 and 110) are engaged by the forward edge of theuniversal bar and carried forward. Now on the unit bars 110 these pins118 would be raised to normal position or wiped out by their engagementwith the inclined edge of the bar 65-. By means of the spring 152engaging the teeth 150 they would remain forward in the positions setuntil the finger 147 on the disk 146 sets these bars back, one tooth ateach revolution of the square shaft 126. This disk is revolved for thefirst unit for five times, at the end of which time the extension 145 onthe arm 143 comes opposite a notch 148 in this bar 110. Compressionsprings 175 and 176 on the rods 14 and 15 move the adding mechanism 80,and by means of the rack 138 re- I on square shaft 126, corresponding tofive rearward movements of the bar 60, the number hasbeen five timesregistered in the unlt position, on the product accumulator.

The pins 118 are raised to normal position by the bar 65 so that thesepins may be ready to be set for the next multiplier. The forwardpositions of the bars 110 correspond to the multiplier and control thenumber of actuations of the unit bars of the multiplicand.

Now with the arm 143 resting against the side of the next unit bar 110,the number will be added twice, with the tens dial in the addingmechanism 80 standing over the bar 84 representing the units order ofthe multiplicand. The pins representing the multiplicand (125) are stilldepressed and the motor still running. In this operation the bar 60moves rearward twice, while the racks G3 and 64 (through the gears 70and 7 3, the square shaft 76, the gear 120, the idlers 121 and 122 andthe gear 124) revolve the shaft 126, and the finger 147 revolves thesame as before, moving the bar 110 back one tooth at each revolutionuntil the extension 145 again registers with the notch 148 in the bar110 and moves to the next bar, by reason of the springs pushing theadding mechanism 80 along the rods as before. The backward movement ofeach of the bars 110, caused by the finger 147, takes place at theinstant when all of the racks 83 are in the rearmost position, to whichthey are moved by the universal actuating bar 60. When the bars 84 withtheir racks 83 are in this position, these racks are entirely out ofengagement with the gear wheels 81 of the adding mechanism 80. There issufficient length of time taken up in the completion of the stroke ofthe racks after they pass out of engagement with the wheels and beforethey become engaged with said wheels on the forward stroke. for thewheels to move a step transversely of said racks. Accordingly, if thesewheels are shifted laterally a distance equal to the space between theracks 83, when these racks are again moved forwardly they will eachengage the gear teeth of the next adjacent gear in the adding mechanism,and meshing with the same will actuate such gears. These racks 83preferably have their end teeth so shaped that they may readily comeinto mesh with the gears 81 on their forward movement. The sameoperation is repeated six times in the hundreds column, 2'. e., with thehundreds dial in the adding mechanism 80 standing over the units of thebars 83. Thus it will be seen that the number 125 has been reallymultiplied by 5 and then by 20 and then by 600, which is the Iequivalent of multiplying by 625.

Now the product accumulator 80 and the frame 142 are in the positionsshown in Fig. 3. At the beginning of" this operation the motor must bestarted by the operator and it must stop automatically at the end ofsuch an operation, 2'. 6., when a number is registered the proper numberof times in the adding mechanism 80 so that the single multiplyingoperation is complete. To accom plish this I provide on the plate 101 anextension having at its lower end a bar 178 at right angles to the plateand extending pa rallel with the movement of the mechanism 80. At eachend of such a bar is an incline or cam which on the sidewise movement ofthe mechanism 80 depresses a dog 180 carried on the upright end 181 of alever 182. This lever is suitably pivoted at 183 and engages at the end184 a suitable lever to release the clutch to allow the motor to operatethe mechanism at the beginning of the movement of the mechanism 80. Thelever 185 is suitably pivoted at 186 and is adapted to also be operatedby a key 187, which is shown above the casing 2 in Fig. 6, when addingthe totals in the mechanism 10. A spring 191 is adapted to return theseparts to the normal position in which to throw out the clutch and allowthe motor to run freely.

To start the motor the operator merely depresses a spring 245 in the rod206, which acts like the catch in an umbrella rod, and allows the rod206 to slide through the opening in the wall of the casing 2, until theextension 145 engages the first bar 110, and the bar 178 stands over thedog 180 (as shown in Fig. 3) thus releasing the clutch and starting themechanism. Now. when the extension 145 is allowed to slide freelythrough all the notches 148 in the bars 110 the adding mechanism ismoved thefull distance to the right; the bar 178 is of such length thatit then passes off of the dog 180 and allows the return of the lever toits normal position, thus releasing the clutch. This dog 180 is pivotedto the bar 181 and allows the bar 178 to slide over it withoutdepressing the lever 181 when the mechanism is drawn to the left. Aspring, not shown, acts to return this dog to normal active position atthe end of this movement. Such a clutch as above mentioned is shownbelow the casing in Fig. 1 as connected with the Scotch yoke, whichserves to oscillate the member 69 connected with the rack '63. Thesectional detail in Fig. 9 of the same clutch will be hereinafter morefully described.

After two numbers have been multiplied together, the typist readsthrough the small aperture 177 in the front of the casing 1, Fig. 6, thenumber or result of such multiplication, and then writes such result insuit able column on the typewriter paper by the usual depression of thenumeral keys, thus setting down the pins 24 on the unit bars 23 of thetotalizer actuator first described. This selection is made by the dog-10, as shown in Figs. 5 and 6, coming into engagement with the pins 37and raising the unit bars 23 in the manner previously described, thussetting down the pins corresponding to the result of the multiplication.The typist then again starts the motor which registers such a number inthe totalizer accumulator 20, heretofore mentioned. Thus, after eachmultiplication the results are registered in this totalizer addingmechanism and, of course, added to the previously registered products,so that after writing the several items the typist may read the totalthrough the aperture 188 in the front of the case 1, Fig. 6, and thusgive the total amount of the bill written. The number written as themultiplicand can be verified by reading through the aperture 177 afterthe first movement of its operating mechanism.

In order to verify the number written as the multiplier (or the amount625 in the example given), and to prevent the operator copying anincomplete product showing in the product accumulator, I provide asimple indicating mechanism shown at 190, Fig. 6, which consists merelyof a dial wheel 192 for each notch bar 110, having a gear 19% rigidtherewith, and idler gears 197 for each of these in mesh therewith,allof these gears being mounted onsuitable shafts 195 and 196. Theseshafts are held in extensions of the frame plates 128 and 129. To allowthe unit bars 110 to position the dial wheels 196 'and still be gearedtherewith, I provide other gears 198 for each of these idlers 197. Thegears 198 mesh with the rack 197 at the forward end on the lower edge ofthe unit bars 110. These gears 198 are of suflicient width to allow theracks 199 to mesh on one side as shown in Fig. 3, the gears 196 alsomeshing therewith, but standing out of the path of the unit bars 110.The gear 191 has a pitch circumference equal to the full distance thatthe unit bars 110 may move. Thus, on the forward movement of these bars,the distance corresponding to the pin depressed is registered by thenumeral on the dial 192 showing through the aperture 190 in the casing1.

It is obvious that on the return movement of the bars 110, theindicating dials are automatically set back to zero, as the gears justdescribed are constantly in mesh, thus, as long as any number ofsignificance shows on the dial wheels, the operator knows the product isnot complete. greater than the distance between two teeth is provided bya small projection 200 where the unit bars 110 pass through the strip orcomb 25, such a bearing allowing the unit bars 110 to ride smoothly atsuch a point.

To set the mechanism in readiness after each multiplying operation, aknob 205 is A bearing surfaceprovided on the end of a small rod 206,which is rigidly attached tothe plate 100 of the frame holding theadding mechanism 80; thus when this rod is pushed in to its innermostposition, the adding mechanism 80 is brought to a position when the10,000 order is over the unit actuating bar 83, because there are fiveorders provided for in the multiplying mechanism. The frame 142 is thusmoved to the position shown by means of the connections through thepinion 131 previously described. Also after each multiplying operationit is desirable and oftentimes necessary to set the adding mechanismback to zero. There are many methods of setting an adding mechanism tozero. The simplest principle in the mind of the inventor at present isthat of giving the central shaft of the adding mechanism one rotation ineither direction, and having means on this shaft for picking up eachdial wheel in whatever position it may be and carrying it back to Zero.

I prefer to set the adding mechanism to zero by rotating the centralshaft in a direction opposite to that given the dial wheels when thenumbers are registered. Accordingly I provide on the central shaft 210 agear 211 which through a pinion 212 carried by the frame of themechanism 80 is operated by a rack 211 on a bar 215 somewhat similar tothe other unit bars and carried in the same manner. However, instead ofthe usual nine pins, I provide only one pin 217 in the position of the9th pin, so that, when such a pin is depressed, the bar 215 has the fullforward movement. The bar 215 has a hook corresponding to the hook 41 onthe unit bars 23 adapted to carry the bar back after being movedforward.

The forward movement of the bar 215 only takes place when the operatordepresses a key 220, Fig. (3, which is connected to the lever 222 at thepoint 223. This lever is suitably pivoted at 225 and is bent at its rearend 226 to engage with the bar 215. This raises the bar 215 a distancegreat enough to depress the pin 217 by reason of its engagement with theextension 227 on'the ninth bar 46 (Figs. 2 and standing over this pinwhile such bar is in its normal position. Thus the distance that the bar215 is raised at this point is necessarily greater than the raising ofany of the unit bars in the other sets, as previously described. Nowwhen the operator has pressed this key 220 the pin 217 is depressedthrough the connections described, and on starting the motor the barmoves forward carrying with it the pin 217, necessarily moving the bar215 forward the full distance. Such a movement gives the gear 211 onecomplete rotation, but such a gear (by reason of a ratchet connectionwith the shaft) is adapted to revolve the central shaft only in onedirection, and is accordingly idle on the forward movement; on therearward movement. however, the central shaft isrotated one completerevolution, and by suitable means (such as is shown in the patent toHanson, 816,319) on the shaft the various dial wheels are picked up fromany position in which they stand and carried back to a zero position.

The adding mechanism is set back to zero as above described, but inorder to set back the pins 85, which were depressed on the precedingoperation, this forward movement of the bar 60 just mentioned picks upthe various depressed pins 85, and carries them forward once more. Onthe bar 215 is a cam 228 engaging the pin 229 rigid on the sleeve 66.One end of the bar 65 is smaller and of rectangular shape, over whichslides a sleeve 66 carried on a rectangular reduced portion of the bar65, and having a beveled edge the same as the rest of the bars, but alsohaving notches spaced the same as the unit bars 83, such notchesnormally standing in the path of the pins 85 and allowing them to moveforward repeatedly without being raised, as

described in connection with the first adding mechanism.

As previously described the engagement of the cam 228 with the pin 229moves the sleeve 66 shown in Fig. 2 to the left, bringing the notchesout of the path of the pins and allowing the beveled edge of the sleeve66 to engage the pins and cam them upwardly to their normal position.This movement of the pins registers once more a corresponding number inthe adding mechanism, which is of no consequence, however, for it is onthe return movement that the adding mechanism is set back to zero.

In order to set the adding mechanism 20 to zero, I provide a gear wheel232 in mesh with a gear 231 on the central shaft of this addingmechanism. This gear 232 is in mesh with a bar 236 which is similar tothe bars 23 in the adjacent set and carried by the same means, but hasonly one pin 237 in the 9th position, the same as the bar 215. This pin237 is depressed on the raising of the bar 236 by means of a lever 238suitablv pivoted at 239, this lever being movableby means of the key240, Figs. 1 and 6. Thus when the operator depresses this key 240 thelever 238 raises the bar 236 and depresses the pin 237 by itsengagementwith a small extension 242 on the bar 46 above it, Fig. This pin 237,having been depressed on the starting of the motor, is carried forwardby the bar 60 and rotates the gear on the central shaft 234 of theadding mechanism 20 freely on its forward movement. but on its rearwardmovement sets the dial wheels to Zero in the manner described inconnection with the mechanism 80.

If the typist makes an error in copying a result shown in the resultaccumulator on the typewriter paper, it is desirable to provide meansfor correcting such an error before it is registered in the totalizeraccumulator. To accomplish this I provide a knob 250 on the short rod252 rigidly attached to the plate 12 which forms a side of the frame inwhich this totalizer mechanism 20 is mounted. Now this frame is slidablymounted on the bars 11, 15 and 16 and is normally held in its operativeposition, that iswith the gears 20 standing in the path of the racks 22,by means of springs 254 and 255 on the rods 11 and 15. These springshold the frame against the pins 257 in each of the rods 11, 15 and 16which limit its sidewise movement so that it stands normally in theoperative position shown in the drawings. Now when the operator findsthat she has depressed the wrong numeral key in copying results to beadded in this column of totals on the typewriter paper,

she pulls out the knob 250 until the shoulder 258 on the rod abuts theside of the casing, which brings the gears 20 of the totalizer mechanismout of the path of the racks 22 and starts the motor by depressing thekey 187 and allows the mechanism to operate once, which by the meansheretofore described would reset the pins 24 without changing the totalalready added in the totalizer accumulator. The operator then releasesthe knob 250, allowing the totalizer mechanism to assume its normalposition and rewrites the number correctly, which is then registered inthe totalizer accumulator in the manner previously described.

The operation of the clutch shown in Fig. 9 is as follows: A disk 260 isloosely mounted on a stud 261 held in a suitable frame 262 whichincloses the clutch and Scotch yoke heretofore mentioned, and has agroove 26% in its periphery, which guides the end of the lever 185. Apin 266 is slidably mounted in this disk near the periphery and has oneside cut away forming a cam 267 adapted to slide the pin inwardly whenengaged by the end of the lever 185. A small spring presses this springoutwardly, so that when the lever 185 is raised, it engages the teeth270 formed on the side of the worm gear 271, which is mounted on thestud 261 adjacent to the disk 260. This gear 271 is driven constantly bythe worm 273 on the shaft 274 of the motor. Now when the lever 185 isreleased, the pin 266 is pressed outwardly by means of the spring 268and engages one of the teeth 270, which rotates the disk until the lever185 again engages the cam 267 of the pin 266 and slides it inwardly outof engagement with the tooth 270, thus stopping the disk 260 while thegear 271 continucs to rotate. A suitable pin 275 is rigidly held nearthe periphery of the disk 260 and engages the groove 276 of the Scotchyoke. to oscillate it when the disk 260 rotates.

In Figs. 13 and 14 the means for holding the pins 24 or correspondingpins in the other sets of actuators is shown. A small spring 280 issuitably held between the two strips 283 and 285, which are rigid withthe unit bar, and engages either of the two notches 286 and 287 in eachof the pins, and holds them in their raised or lowered posi tions, asshown.

Fig. 15 shows a detail of either of the gears 211 or 234. The gear beingcupped out on one side to receive a circular ratchet disk 290 rigid onthe central shaft of the adding mechanism and a dog 291 suitably pivotedto the gear at 293. This dog is pressed into engagement with the teethof the disk 290 by means of a small spring 295. It is obvious that thegear may be rotated freely in one direction without rotating the centershaft of the adding mechanism, while in the opposite direction the dog291 will engage the teeth of the disk 290 and rotate the shaft.

Having thus described my invention, what I claim is:

1. In a combined typewriting and computing machine, the combination,with a typewriter, of mechanism controlled by the numeral keys of thetypewriter for registering a multiplicand, mechanism controlled by thenumeral keys of the typewriter for registering the multiplier, automaticmechanism for causing the registered multiplier and multiplicand tocoact to indicate their product, and a totalizer controlled by thenumeral keys of the typewriter and serving to add said products whentypewritten by the typewriter.

2. The combination, with a typewriting machine, of two settableregisters, mechanism adapted to connect each register with the numeralkeys of the typewriter, whereby the typewriter may set one register tocorrespond with a certain multiplieand and the other register tocorrespond witlra certain multiplier, mechanism coacting with bothregisters to operate one in accordance with the other, dial wheelsoperated by such coaction to indicate the product of the multiplier andmultiplicand, and a totalizer controlled by the same numeral keys,whereby when the products are typewritten by the typewriter thetotalizer may be set to add such products.

3. The combination with a typewriting machine, of automaticallyoperating mecha nism actuated by the typewriter to indicate productsconsequent upon the factors of the product being typewritten, and atotalizer automatically operated by mechanism adapted to be set by thenumeral'keys of the typewriter adapted to add the products as they aretypewritten.

4. The combination, with a typewriting machine having numeral keys andletter keys adapted to write any desired words and figures, of twosettable actuators controlled by said numeral keys, one actuator adaptedto be set to correspond with one factor of a computation and the otherwith another factor, and mechanism for causing such two actuators tocoact to indicate the product of such factors.

5. The combination, with a typewriting machine having numeral keys, aset of dial wheels, mechanism set by the numeral keys when writing amultiplicand, mechanism set by the numeral keys when writing amultiplier, and mechanism for causing the two mechanisms mentioned tocoact on the dial wheels, whereby they indicate the product.

6. The combination, with a typewriting machine having numeral keys, twosettable actuators, connections between the same and the numeral keysestablished according to the position of the typewriter carriage,whereby in one position the keys set one actuator and in anotherposition set the other actuator, and mechanism for causing the twoactuators to coact to indicate the product of the two factors thus set.

7. The combination, with a typewriting machine having numeral keys, twosettable actuators, connections between the same and the numeral keysestablished according to the position of the typewriter carriage,whereby in one position the keys set one actuator and in anotherposition set the other actuator, a set of dial wheels, and mechanismcontrolled conjointly by the two actuators mentioned for rotating thedial wheels to indicate the product of the two factors typewritten.

8. The combination, with a series of dial wheels, of an actuatortherefor adapted to be set according to one factor of a computation, asecond actuator adapted to be set according to another factor of thecomputation, mechanism for operating the first actuator a number oftimes corresponding to the setting of the second actuator, and mechanismfor changing the relation of the dial wheels and their actuatorsaccording to the orders set on the second actuator.

9. The combination of a set of dial wheels provided with carryingmechanism, an actuator therefor having a set of individual movable barsadapted to operate the dial wheels, each bar having nine pins adapted tobe set to represent a corresponding digit, and mechanism adapted to beset according to a factor of the computation and controlling the numberof times said bars are moved, the pin in each bar controlling the amountof rotation given to the corresponding dial wheel by such movement,andme hanism for changing the relation of the bias and dial wheelsaccording to the orders f the computation.

10. The combination, with a set of dial wheels, an actuator thereforcomprising a series of individual movable bars, mechanism adapted to beset to control the amount of travel of the bar, whereby thecorresponding dial wheel isturned an amount corresponding to a givendigit, mechanism adapted to be set according to the digits of themultiplier and having a series of bars movable variable amountsaccording to the setting, and mechanism for moving the bars of the firstset a number of times corresponding to the original setting of the barsof the second set.

11. The combination, with a set of dial wheels, an actuator thereforcomprising a series of individual movable bars, mechanism adapted to beset to control the amount of travel of the bar whereby the correspondingdial wheel is turned an amount corresponding to a given digit, mechanismadapted to be set according to the digits of a multiplier and having aseries of bars movable variable amounts according to the setting,mechanism for moving the bars of the first set a number of timescorresponding to the original setting of the bars of the second set,mechanism for returning the bars of the second set to normal position bysuccessive steps once for each movement of the bars of the first set,and mechanism for shifting the dial wheels with reference to theiractuating bars, one order consequent upon the return of the bar of thesecond set to normal position.

12. The combination (with a typewriting machine having numeral keys, aset of dial wheels, means for operating these dial wheels and means tobe set by the numeral keys of the typewriter whereby they may representany desired number, means for repeatedly operating the last mentionedmeans to register the number on the dial wheels, means located besidethe first mentioned means for controlling the number of operations, andmechanism on the last mentioned means to be set by the numeral keys ofthe typewriter, such mechanism also controlling the orders in whichdesired number is registered on the dial wheels.

13. The combination of an adding mechanism with mechanism for operatingthe adding mechanism, means on the operating mechanism which may be setcorresponding to any desired number, the adding mechanism being slidableso that the number set on the operating mechanism may be added indifferent orders on the adding mechanism,

means for controlling the orders and said means being adapted to controlthe number of times the number is registered in the adding mechanism ineach order according to a second given number.

14,. In a device of the character described the combination of atypewriter having numeral keys of an adding mechanism, of bars havingracks adapted to operate the dial wheels of the adding mechanism, ofmeans on the bars adapted to be set according to any desired number, areciprocable transverse bar adapted to engage the mechanism which is setaccording to a given number, another transverse bar having a cam on itsedge adapted to reset mechanism on the bars, meansconnected with thenumeral keys of the typewriter and selecting means on the typewriter forselecting bars corresponding to the orders of the number, and means forautomatically controlling the number of reciprocations of the transversebar according to a number by which the first bar is to be multiplied.

15. In a device of the character described, an accumulator slidablymounted for registering the results of multiplications of numbers, ofbars having racks adapted to operate the dial wheels of such saidaccumulator, pins on these bars adapted to be depressed according to anydesired number, selecting mechanism for determining on which bar acertain pin will be depressed and mechanism connected with the numeralkeys of the typewriter for depressing the pins corresponding to thenumeral key depressed, means for reciprocating these bars and operatingthe dial wheels of the accumulator thereby, a second set of bars havingpins which may be depressed by the numeral keys of the typewriter, asecond selecting device to determine on which bar the pin shall bedepressed, means co-acting with these bars whereby the order in whichthe number will be registered in the accumulator is determined, andmeans in difierent paths on they typewriter carriage for selecting theorders in both of these sets of bars.

16. In a machine of the character described, the combination, with atypewriter having numeral keys, bars, adding mechanisms mounted on saidbars having operating mechanism therefor, consisting of a set of barsfor each adding mechanism, racks on the bars for rotating the dialwheels of the mechanisms, each of these bars corresponding to the orderof a desired number to be registered in the adding mechanism, a secondset of bars similar to the first set, a frame slidably mounted adjacentto the adding mechanism andconnected therewith, such frame being adaptedto engage the side of each bar in the second set to select the orders inwhich a desired number is regisvarious bars of the set, a second set ofbarshaving teeth thereon, mechanism on these bars adapted to be setcorresponding to a desired number, a transverse bar adapted to engagethe mechanism corresponding to the number on each set of bars andreciprocate the bars to register such a number in the addingHmechanismon the first set, a frame connected with the adding mechanism todetermine its position with relation to its set of bars, a projection onthis frame for engaging the side of each bar in the second set, and anotch in each bar of. the second set through which the projection on theframe passes from one bar to another to position the adding mechanismaccordingly.

18. The combination, with an adding mechanism, of a set of slidable barshaving mechanism thereon adapted to be set according toa desired numberfor actuating the dial wheels of the adding mechanism accordingly, meansfor repeatedly operating these bars, a second set of slidable barssimilar to the first set adapted to be set. in positions correspondingto any desired number, teeth on these bars adapted to beengaged by afinger revolving once for each actuation of the mechanism operating thefirst set of bars, whereby the numbers of the second set are moved onetooth for each revolution of the finger, a slidable frame carrying afinger and connected to the adding mechanism so that its engagement withthe side of any bar determines the position of the adding mechanismrelative to the bars of the first set, a plurality of rods on which theadding mechanism and frame are mounted, and springs on said rods forsliding mechanism along these bars.

19. The combination, with an adding mechanism, of a set of slidable barshaving mechanism thereon adapted to be set according to a desired numberfor actuating the dial wheels of the adding mechanism accordingly, meansfor repeatedly operating these bars, a second set of slidable barssimilar to the first set adapted to be set in positions corresponding toany desired number, teeth on these bars adapted to be engaged by afinger revolving once for each actuation of the mechanism operating thefirst set of bars, whereby the numbers of the second set are moved onetooth for each revolution of the finger, a slidable frame carrying afinger and connected to the adding mechanism so that its engagement withthe side of any bar determines the position of the adding mechanismrelative to the bars of the first set, a plurality of rods on which theadding mechanism and frame are mounted, springs on said rods for slidinmechanism along these bars, and a motor or actuating the bars of bothsets, and means connected with the adding mechanism to automaticallystart the motor and stop it at the finish of the operation.

20. The combination of an adding mecha nism, means for repeatedlyregistering a given number in the adding mechanism according to a secondgiven number by which the first is to be multiplied, a multipliermechanism, a second adding mechanism, a typewriter, means actuated bythe typewriter keys' whereby numbers may be re 'stered on the two addingmechanisms an on the multiplier mechanism consequent upon such numbersbeing typewritten, a reciprocatin the ad ing mechanism and'themultiplier mechanism, and a motor for reciprocating the actuatingmechanism.

21. The combination,'with a typewriter, of an adding mechanism, slidablebars having racks thereon meshing with gears on the dial wheels of theadding mechanism, the

mechanism on these bars adapted to be set by the keys of the typewriterto correspond to any given number typewritten, an actuating means forsliding these bars whereby such a number is registered in the addingmechanism, means for resetting mechanism on the bars representing thenumber, and

actuating mechanism common to means whereby the adding mechanism may beslid out of the path of the racks on the bars so that errors in settingthe mechanism representing the number may be correctedwithout'disturbing the total already in the adding mechanism.

22. The combination, with an adding mechanism, of a set of bars, one foreach dial wheel, means on the bars for actuating the dial wheel, aplurality of pins on each bar adapted to be set to represent any desirednumber, a reciprocating bar for engaging these pins to actuate the,adding mechanism accordingly, a second bar having a series of camsthereon normally standing out of the path'of the pins but adapted to bebrought into the path of the pins for resetting them to their normalposition.

23. The combination of a product accumulator, a setable actuatortherefor, a multiplier actuator adapted to be set, means for operatingthe accumulator by a succession of strokes, the number of whichcorresponds to the setting of the multiplier actuator, the value of eachstroke being dependent upon the setting of the first mentioned actuator,and means for automatically shifting the accumulator with reference toits actuator to the next order when it has been operated a number oftimes corresponding to the setting of the multiplier actuator for agiven order.

24. The combination of a typewriter having letter keys and numeral keys,a product accumulator, a totalizer accumulator, an actuator for theproduct accumulator, a second actuator controlling the action of thefirst actuator, an actuator for the totalizer accumulator, means wherebythe typewriter numeral keys. are connected automatically, consequentupon the travel of the typewriter carriage, first with one of theproduct actuators, then with the other product actuator, and then withthe totaliz er actuator, and means whereby thetwo actuators firstmentioned coact to cause the product accumulator to indicate the productof all item and a rate successively typewritten.

25. The combination of an accumulator, an actuator therefor adapted tobe moved various amounts, means for setting the actuator to determinethe amount of movement, a second actuator, means for setting it forvarious amounts, reciprocating means for moving the first actuator bysuccessive strokes the number of which is dependent upon the setting ofthe second actuator and the value of which is dependent upon the settingof the first actuator, and a typewriter having numeral keys which actautomatically on the first actuator and then on the second consequentupon the travel of the typewriter carriage.

26. The combination of an accumulator, an actuator therefor adapted tobe set according to the digits of a multiplicand, reciprocating meansfor moving said actuator by strokes the value of which depends upon thesetting of the actuator, a second actuator having members adapted to beset according to the digits of a multiplier, a device for returning themembers of the second actuator to normal position by steps the number ofwhich is equal to the number of the digit represented, and means wherebythe number of steps of the second actuator controls the number ofstrokes of the first actuator.

27. The combination of an accumulator, an actuator therefor adapted tobe set according to the digits of a multiplicand, reciprocating meansfor moving said actuator by strokes the value of which depends upon. thesetting of the actuator, a second actuator having members adapted to beset according to the digits of a multiplier, a device for returning themembers of the second actuator to normal position by steps the number ofwhich is equal to the number of the digit represented, means whereby thenumber of strokes of the first actuator controls the number of steps ofthe second actuator, and means for automatically changing the relativeposition of the accumulator and first actuator to change the ordersacted upon when a member of the second actuator goes back to normalposition.

28. The combination of an accumulator, an actuator therefor adapted tobe set according to the digits of a multiplicand, re-

\ ciprocating means for moving said actuator by strokes the value ofwhich depends upon the setting of the actuator, a second actuator havingmembers adapted to be set according to the digits of a multiplier,\adevice for returning the members of the second actuator to normalposition by steps the number of which is equal to the number of thedigit represented, means whereby the number of steps of the secondactuator controls the number of strokes of the first actuator, means forautomatically changing the relative position of the accumulator andfirst actuator to change the orders acted upon when a member of thesecond actuator goes back to normal position, and a typewriter having atraveling carriage and having numeral keys which are automaticallyconnected with the first actuator and then with the second actuator asthe carriage moves to change the paper from an item position to a rateposition.

29. The combination of an accumulator, an actuator therefor adapted tobe set according to the digits of a multiplicand, reciprocating meansfor moving said actuator by strokes the value of which depends upon thesetting of the actuator, a second actuator having members adapted to beset according to the digits of a multiplier, a device for returning themembers of the second actuator to normal position by steps the number ofwhich is equal to the number of the digit represented, means whereby thenumber of steps of the second actuator controls the number of strokes ofthe first actuator, means whereby the device which returns the membersof the second actuator automatically travels into coaction with themember of the next order of the second actuator consequent upon thegiven member returning to normal position, and a coupling between thesaid device and the accumulator whereby the shifting of the device isaccompanied by a corresponding shifting of the accumulator withreference to its actuator.

30. In a machine of the character described, with a typewriter thecombination of mechanism adapted to be set by the numeral keys of thetypewriter to correspond to the multiplier, mechanism adapted to be setby said numeral kevs to correspond to the multiplicand, mechanismcooperating with the two first mentioned mechanisms by a series ofautomatically repeated operations thereof to indicate the product.

31. The combination, with a typewriting machine, of mechanism adapted tobe set by the numeral keys of the typewriter to correspond to themultiplier, mechanism adapted to be set by the numeral keys tocorrespond to the multiplicand, and mechanism cooperating with the twofirst mentioned mechanisms by a series of automatically repeatedoperations thereof to indicate the product, and a totalizer adapted toadd said products consequent upon their being typewritten by thetypewriter.

32. The combination of a ty ewriting machine, two sets of dial whee s,mechanism for registering factors of a product on said dial wheelsconsequent upon the depression of the numeral keys of the typewriter andincluding means for automatically causing the first set of dial Wheelsto indicate the product, and mechanism operated by part of the firstmentioned mechanism for causing the second set of dial wheels toindicate the total of such product and previously written amounts.

33. The combination of an accumulator an actuator therefor adapted to bemoved various amounts, means for setting the actuator to determine theamount of movement, a second actuator adapted to be set for variousamounts by the same means as the first actuator, reciprocating means formoving the first actuator by successive strokes, the number of which isdependent upon the set ting of the second actuator and the value ofwhich is dependent upon the setting of the first actuator.

In testimony whereof, I hereunto afiix my signature in the presence oftwo witnesses.

HOLMES MARSHALL.

Witnesses:

ALBERT H. BATES, BRENNAN B. WEST.

